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Thread: Wilwood clutch pedal extension

  1. #1
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    Wilwood clutch pedal extension

    Hoping someone out their can help. Just purchased a FF MK 3 cobra. It has the wilwood pedal box. Previous owner was 6'4 . I I an 5 6 and in order to get full clutch travel. I have to move the seat until the steering wheel is uncomfortable close. Tried a pedal pad extension made for the sn 95 setup but the wilwood pedal is larger. Anyone know of something out their besides a block of wood and a band clamp. Thanks
    Last edited by Dreamon; 12-08-2018 at 02:28 PM.

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  3. #2
    edwardb's Avatar
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    Is the clutch hydraulic or cable actuated? If you're not sure, it's easy to see whether there's a cable coming out of the driver's side footbox in the engine compartment. If it's hydraulic, easy enough to adjust the pedal position via the clevis on the clutch master cylinder.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
    Build 2: Mk4 Roadster #7750. Sold 04/10/2017. #7750 Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017. #8674 Build Thread
    Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017. #59 Coupe Build Thread

  4. #3
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    It cable with an adjuster on firewall.

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    Quote Originally Posted by Dreamon View Post
    It cable with an adjuster on firewall.
    Does your Mk3 have an access panel on the top of the driver's side footbox? I don't think it was standard then, but maybe the builder installed one. Would be good to post pictures of what you have in there. That would help to know how to answer. Wilwood pedal boxes weren't real common with the Mk3. You're positive that's what you have?
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
    Build 2: Mk4 Roadster #7750. Sold 04/10/2017. #7750 Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017. #8674 Build Thread
    Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017. #59 Coupe Build Thread

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    Would the acess panel be riveted ?

  7. #6
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    Quote Originally Posted by Dreamon View Post
    Would the acess panel be riveted ?
    Not typically. Normally held with screws or whatever. This isn't the best picture since it's an early Mk4. But in the area where the hole is.



    Like I said, pretty sure they weren't normal on a Mk3. But the builder might have installed one if there's really a Wilwood pedal box in there. Is there a brake master cylinder on the outside of the pedal box (e.g. visible from the engine compartment) or are there two master cylinders that you can only see by looking up inside the pedal box? The later would be Wilwood for sure. Otherwise, maybe not. Pictures if you could post them would really help. Otherwise we're all kind of guessing.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
    Build 2: Mk4 Roadster #7750. Sold 04/10/2017. #7750 Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017. #8674 Build Thread
    Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017. #59 Coupe Build Thread

  8. #7
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    Pedal Extension

    Ed thank you for the replies.
    Was hoping someone else had this issue and their was something out their that would work. Definitely a Wilwood set up. 2 Mc's under the dash. Wilwood logo written on both pedal arms and Mc. I have 22 inches from Clutch pedal to beginning of seat bottom.
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  9. #8
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    Ok, the pictures and answered questions help some. Since you're a new owner and new to the forum, just a comment FWIW. These cars can be built with a lot of variations. That's why all the questions. Saying "Mk3 with a Wilwood pedal box" narrows it down, but more details are needed to give any advice.

    Having said that, your pictures clearly show a Mk3 footbox with a Wilwood pedal box and no access panel (ugh). Because the Wilwood pedal box is designed for a hydraulic clutch, Factory Five designed some add-on parts to change it to cable. There are at least two versions of the mechanical clutch quadrant assembly from Factory Five. The most recent is shown on page 7 of these instructions. https://www.factoryfive.com/wp-conte...WOOD-rev-H.pdf. Pretty good chance, based on the vintage of your kit, that you have an earlier version. But can't say for sure because neither the quadrant or clutch cable are visible in your pictures. The current setup pulls on the center line of the clutch pedal. The earlier version is cantilevered over to the side and is the less desirable version.

    To get to your original question, it should be possible to adjust the quadrant and raise your clutch pedal. But you need to know more about the exact setup you have plus it's not going to be easy to reach. For this situation, and the future, you might want to consider cutting an access hole into the top of the footbox. If you ever need to service or replace a master cylinder for example, would be basically impossible to reach from underside in the footbox. Plus it's about the most uncomfortable place to work in the entire car. Since your aluminum isn't powder coated, no big deal to make a cover out of another piece of aluminum.

    One other observation. Based on what I can see, you have the older style Wilwood pedal arms. There were several situations where those broke, specifically if you have the earlier cantilevered version of the clutch cable quadrant. Don't know that I'd panic about it, but something to be aware of. These are the newer style. You can compare what you have to these. http://www.factoryfiveparts.com/1554...forged-pedals/.
    Last edited by edwardb; 12-08-2018 at 08:34 PM.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
    Build 2: Mk4 Roadster #7750. Sold 04/10/2017. #7750 Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017. #8674 Build Thread
    Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017. #59 Coupe Build Thread

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